计算机网络安全概述

该文首先介绍网络安全的涵义,并针对攻击互联网安全性的两种类型:静态数据攻击和动态数据攻击,指出一个网络安全系统所应具有的主要功能。其次,详细阐述了保障网络信息安全的两类常用技术:以防火墙技术为代表的被动防卫型技术和建立在数据加密、用户授权确认机制上的开放型技术。最后,该文对未来网络信息安全的应用前景作出了展望。

Survey on Computer Network Security

With the rapid development of computer network technology, the issue of computer network security has received much attention. Motivated by this, this paper first introduces the concept of network security. For two network attack types: static data attack and dynamic data attack, we indicate the principle functions that a network security system should have. Meanwhile, we discuss two kinds of network information security technologies: one is passive defense technology, such as Firewall technology; the other is open technology, which is based on data encryption and user authorization confirmation mechanism. Finally, this paper points out the future application prospects of network information security.